Let me tell you something. At present, there are some middle school math competition classes in Dalian, and two places can be regarded as real teachers. One is Wang Mindong of the Chenxi Building in Black Rock Reef. He has a high-light Olympics. Here he only talks about competitions, not synchronized with textbooks. Wang Mindong is now over 60 years old and has a good reputation. The other is the education of Mr. Zhang Wanbin, a scholar near the Polytechnic University. Although Mr. Zhang is not mainly talking about competition topics, the depth and difficulty of teaching can definitely reach the competition level. Almost all the students are the best in the grade. As a student, this teacher won the first prize in the national junior high school mathematics competition, and should be a god.

As for high school mathematics Olympic Games classes, there are no extracurricular remedial classes in Dalian at present, and some of them are internal classes of famous schools. In fact, at this level, the key is students' self-study ability, because god-level figures rarely end up as teachers.

My own feelings for many years, I hope you can correct me.